SERVICE MANUAL

COMPACT DISC DECK RECEIVER

HCD-SPZ50/SPZ70Ver. 1.3 2007.02

SPECIFICATIONS

CD Section Model Name Using Similar Mechanism NEW

CD Mechanism Name DLM3A

Base Unit Name BU-K6BD83S-WOD

Optical Pick-Up Block Name KSM-213DCP

TAPE Section Model Name Using Similar Mechanism NEW

Tape Transport Mechanism Name CFP42601

– Continued on next page –

9-887-055-042007B05-1© 2007.02

Sony CorporationPersonal Audio DivisionPublished by Sony Techno Create Corporation

AEP ModelUK Model

E ModelHCD-SPZ50/SPZ70

Australian ModelHCD-SPZ50

• HCD-SPZ50 is the amplifier, CD player, tapedeck and tuner section in CMT-SPZ50.

• HCD-SPZ70 is the amplifier, CD player, tapedeck and tuner section in CMT-SPZ70. Photo: HCD-SPZ70

Amplifier sectionHCD-SPZ70European and Russian models:

DIN power output (rated): 60 + 60 W (4 ohms at 1 kHz, DIN)Continuous RMS power output (reference): 75 + 75 W (4 ohms at 1 kHz, 10% THD)Music power output (reference): 75 + 75 W (4 ohms at 1 kHz, 10% THD)

Other models:The following are measured at AC 127 V, 60 Hz (Mexican model)AC 120 – 127 V or AC 220 – 240 V, 50/60 Hz (Other models)

DIN power output (rated): 50 + 50 W (4 ohms at 1 kHz, DIN)Continuous RMS power output (reference): 60 + 60 W (4 ohms at 1 kHz, 10% THD)

InputsAUDIO IN: Sensitivity 250 mV, impedance 47 kilohms

OutputsPHONES: Accepts headphones with an impedance of 8 ohms or moreSPEAKER: Accepts impedance of 4 ohms

HCD-SPZ50European and Russian models:

Other models:

DIN power output (rated): 40 + 40 W (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference): 50 + 50 W (6 ohms at 1 kHz, 10% THD)Music power output (reference): 50 + 50 W (6 ohms at 1 kHz, 10% THD)

The following are measured at AC 220 – 240 V, 50/60 HzDIN power output (rated): 30 + 30 W (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference): 40 + 40 W (6 ohms at 1 kHz, 10% THD)

InputsAUDIO IN: Sensitivity 250 mV, impedance 47 kilohms

OutputsPHONES: Accepts headphones with an impedance of 8 ohms or moreSPEAKER: Accepts impedance of 6 ohms

CD player sectionSystem: Compact disc and digital audio systemLaser Diode Properties

Emission Duration: ContinuousLaser Output*: Less than 44.6µW* This output is the value measurement at a distance of 200 mm from the

objective lens surface on the Optical Pick-up Block with 7mm aperture.Frequency response: 20 Hz – 20 kHz (±2 dB)Wavelength: 780 – 790 nm

Tape deck sectionRecording system: 4-track 2-channel, stereoFrequency response: 50 – 13,000 Hz (±3 dB), using Sony TYPE I cassettes

Tuner sectionFM stereo, FM/AM superheterodyne tunerFM tuner section:

Tuning range: 87.5 – 108.0 MHzAntenna: FM lead antennaAntenna terminals: 75 ohms unbalancedIntermediate frequency: 10.7 MHz

AM tuner section:Tuning rangeEuropean and Russian models: 531 – 1,602 kHz (with 9 kHz tuning interval)Latin American model: 530 – 1,710 kHz (with 10 kHz tuning interval) 531 – 1,710 kHz (with 9 kHz tuning interval) Other models: 530 – 1,710 kHz (with 10 kHz tuning interval) 531 – 1,602 kHz (with 9 kHz tuning interval)Antenna: AM loop antennaAntenna terminals: External antenna terminalIntermediate frequency: 450 kHz

U.S. and foreign patents licensed from DolbyLaboratories.

2

HCD-SPZ50/SPZ70

Notes on chip component replacement• Never reuse a disconnected chip component.• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Flexible Circuit Board Repairing• Keep the temperature of the soldering iron around 270 ˚C

during repairing.• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).• Be careful not to apply force on the conductor when soldering

or unsoldering.

TABLE OF CONTENTS

1. SERVICING NOTES ............................................... 3

2. GENERAL ................................................................... 5

3. DISASSEMBLY3-1. Disassembly Flow ........................................................... 73-2. Case ................................................................................. 73-3. Front Panel Assy .............................................................. 83-4. Tape Mechaism Deck (CFP42601) ................................. 83-5. MAIN Board .................................................................... 93-6. Base Unit (BU-K6BD83S-WOD Assy)/

Belt (DLMA) ................................................................... 93-7. AMP/SP/POWER Board ................................................. 103-8. Tuner (FM/AM) ............................................................... 10

4. TEST MODE .............................................................. 11

5. MECHANICAL ADJUSTMENT .......................... 13

6. ELECTRICAL ADJUSTMENT ............................ 13

7. DIAGRAMS7-1. Block Diagram – CD SERVO Section – ......................... 157-2. Block Diagram – MAIN Section – .................................. 167-3. Block Diagram – AMP Section – .................................... 177-4. Block Diagram

– PANEL/POWER SUPPLY Section – ........................... 187-5. Printed Wiring Board – CD Board – ............................... 207-6. Schematic Diagram – CD Board – .................................. 217-7. Printed Wiring Board – TC Board – ................................ 227-8. Schematic Diagram – TC Board – .................................. 237-9. Printed Wiring Board – MAIN Board – .......................... 247-10. Schematic Diagram – MAIN Board (1/3) – .................... 257-11. Schematic Diagram – MAIN Board (2/3) – .................... 267-12. Schematic Diagram – MAIN Board (3/3) – .................... 277-13. Printed Wiring Board – AMP Board (SPZ50) – .............. 287-14. Schematic Diagram – AMP Board (SPZ50) – ................. 297-15. Printed Wiring Board – AMP Board (SPZ70) – .............. 307-16. Schematic Diagram – AMP Board (SPZ70) – ................. 317-17. Printed Wiring Board – PANEL Section (1/2) – ............. 327-18. Printed Wiring Boards – PANEL Section (2/2) – ............ 337-19. Schematic Diagram – PANEL Section (1/2) – ................ 347-20. Schematic Diagram – PANEL Section (2/2) – ................ 357-21. Schematic Diagram – POWER Board – .......................... 367-22. Printed Wiring Board – POWER Board – ....................... 37

8. EXPLODED VIEWS8-1. Overall Section ................................................................ 538-2. Front Panel Section ......................................................... 548-3. FL Section ....................................................................... 558-4. CD Section ...................................................................... 568-5. Power Section .................................................................. 57

9. ELECTRICAL PARTS LIST ................................ 58

CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous radiationexposure.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.

GeneralPower requirements

Mexican model: 127 V AC, 60 HzLatin American model except for Mexican and Argentine models: 120 – 127 V or 220 – 240 V AC, 50/60 HzAdjustable with voltage selectorOther models: 220 – 240 V AC, 50/60 Hz

Power consumption:HCD-SPZ70: 45 wattsHCD-SPZ50: 40 watts

Mass (excl. speakers): Approx. 4.1 kg

Design and specifications are subject to change without notice.

Ver. 1.3

Note: Refer to SUPPLEMENT-1 for the HP A-IN and MAIN boardsof printed wiring boards, schematic diagrams and electri-cal parts list of HCD-SPZ70 Korean model.

3

HCD-SPZ50/SPZ70SECTION 1

SERVICING NOTES

MODEL IDENTIFICATION

MODEL PART No.

SPZ70: AEP, UK 2-659-064-0[]

SPZ70: E2 2-659-064-1[]

SPZ70: MX 2-659-064-2[]

SPZ70: E51 2-659-064-3[]

SPZ70: AR 2-659-064-4[]

SPZ70: RU 2-659-064-6[]

SPZ70: KR 2-659-064-7[]

SPZ50: AEP, UK 2-670-256-0[]

SPZ50: SP 2-670-256-1[]

SPZ50: AUS 2-670-256-2[]

SPZ50: KR 2-670-256-3[]

SPZ50: RU 2-670-256-4[]

• AbbreviationAR : Argentina modelAUS : Australian modelE2 : 120V AC area in E modelE51 : Chilean and Peruvian modelsKR : Korean modelMX : Mexican modelRU : Russian modelSP : Singapore model

The laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.

NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission,observe from more than 30 cm away from the objective lens.

NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNIT

UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARKUnleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higherthan ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350 °C.Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to flow)than ordinary solder so use caution not to let solder bridgesoccur such as on IC pins, etc.

• Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.

RELEASING THE ANTITHEFT LOCKThe disc table lock function for the antitheft of an demonstrationdisc in the store is equipped.

Releasing Procedure :1. Press the I/1 button to turn the power on.2. While pressing the x button, press the Z button until

“UNLOCKED” displayed on the fluorescent indicator tube(around 5 seconds).

Note: When “LOCKED” is displayed, the antitheft lock is not released byturning power on/off with the I/1 button.

PART No.

— Rear Panel —

Ver. 1.3

4

HCD-SPZ50/SPZ70Ver. 1.3

– MAIN Board (Conductor Side) –

IC1301

M30622MEP-[ ]

A36FP: TYPE AA38FP: TYPE BB09FP: TYPE C

NOTE OF REPLACING MAIN BOARD, IC1301 (MAIN BOARD), C25 (POWER BOARD) OR POWER BOARDIC1301 that have been mounted on the MAIN board of AEP, UK and Russian models has been changed in the midway of production. C25 onthe POWER board and POWER board have been changed with the change.Because there is a suited combination, when you repairing exchange the MAIN board, IC1301 on the MAIN board, C25 on the POWERboard or the POWER board, be sure to confirm which type set referring to the following.

• Corresponding ModelModel Destination

HCD-SPZ50AEP, UK and Russian

HCD-SPZ70

Note: Distination except AEP, UK and Russian models are type B and type C only.

• CombinationTYPE IC1301 (MAIN board) C25 (POWER board) POWER board

A 6-806-302-01 IC M30622MEP-A36FPU0 1-216-948-11 ELECT 100uF 20% 35VA-1191-115-A (SPZ70)

A-1191-116-A (SPZ50)

B 6-806-618-01 IC M30622MEP-A38FPU0 1-216-950-11 ELECT 330uF 20% 35VA-1166-887-A (SPZ70)

A-1167-006-A (SPZ50)

C 6-807-018-01 IC M30622MEP-B09FPU0 1-216-950-11 ELECT 330uF 20% 35VA-1166-887-A (SPZ70)

A-1167-006-A (SPZ50)

• DiscriminationDiscriminate by the type name printed on IC1301 that have been mounted on the MAIN board.

• Replacing wolkWhen you exchange the MAIN board:

1. Confirm which type set of the repair (Refer to “Discrimination”).2. Confirm the IC1301 of which has been mounted on the new MAIN board (Refer to “Combination”).3. Work according to the following table.

Repairing Set

Type A B or C

A Install the MAIN board as it isInstall the MAIN board after exchanging C25 of the

New MAIN BoardPOWER board for 100uF (1-126-948-11)

B or CInstall the MAIN board after exchanging C25 of the

Install the MAIN board as it isPOWER board for 330uF (1-126-950-11)

When you exchange the IC1301 on the MAIN board:1. Confirm which type set of the repair (Refer to “Discrimination”).2. Exchange it for IC1301 of the same as the repairing set (Refer to “Combination”).

When you exchange the C25 on the POWER board:1. Confirm which type set of the repair (Refer to “Discrimination”).2. Exchange it for C25 of the same as the repairing set (Refer to “Combination”).

When you exchange the POWER board:1. Confirm which type set of the repair (Refer to “Discrimination”).2. Exchange it for POWER board of the same as the repairing set (Refer to “Combination”).

5

HCD-SPZ50/SPZ70SECTION 2GENERAL

This section is extracted frominstruction manual.

HCD

HCD

6

HCD-SPZ50/SPZ70

HCD-SPZ50/SPZ70

7

Note: Follow the disassembly procedure in the numerical order given.

3-2. CASE

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SECTION 3DISASSEMBLY

3

3

1 three screws(B3)

2 two screws(case 3 TP2)

2 two screws(case 3 TP2)

4 case

SET

3-2. CASE(Page 7)

3-8. TUNER (FM/AM)(Page 10)

3-4. TAPE MECHANISM DECK (CFP42601)(Page 8)

3-7. AMP/SP/POWER BOARD(Page 10)

3-5. MAIN BOARD(Page 9)

3-6. BASE UNIT (BU-K6BD83S-WOD ASSY)/BELT (DLMA)(Page 9)

3-3. FRONT PANEL ASSY(Page 8)

HCD-SPZ50/SPZ70

8

3-3. FRONT PANEL ASSY

3-4. TAPE MECHANISM DECK (CFP42601)

1 flexible flat cable (7 core)(CN1304)

3 flexible flat cable (11core)(CN1303)

4 flexible flat cable (9 core)(CN1306)

5 flexible flat cable (11 core) (SPZ50)/flexible flat cable (17 core) (SPZ70)/(CN1305)

6 four screws (B3)

7 front panel assy

2 connector(CN1307)

2 four screws(2.6 × 8)

3 Tape mechanical deck(CFP42601)

1 connector(CN302)

HCD-SPZ50/SPZ70

9

3-5. MAIN BOARD

3-6. BASE UNIT (BU-K6BD83S-WOD ASSY)/BELT (DLM3A)

8 three screws(B3)

5 connector(CN1203)

3 flexible flat cable (19 core)(CN1302)

6 flexible flat cable (13 core)(CN1308)

4 flexible flat cable (11 core) (AEP, UK)/flexible flat cable (9 core) (EXCEPT AEP, UK)(CN1310)

2 connector(CN1202)

1 connector(CN1201)

9 MAIN board

7 flexible flat cable (23 core)(CN1309)

7 four screws8 plate cam

9 Slide the tray.

1 four screws

0 two belts(DLM3A)

4 four coil springs(insulator)

2

6 base unit(BU-K6BD83S-WOD assy)

Note: Even if base unit is not removed, two belts can remove.

3 four floating screws(PTPWHM 2.6)

5 four insulators

HCD-SPZ50/SPZ70

10

3-7. AMP/SP/POWER BOARD

3-8. TUNER (FM/AM)

3 AMP board

9 POWER board

2 four screws(B3)

6 connector(CN1)

7 connector(CN31)

8 two screws(B3)

5 SP board

4 two screws(BVTP 3 × 8)

1 two connectors(CN850, CN870)

2 tuner(FM/AM)

1 two screws(BVTP 2.6 × 8)

11

HCD-SPZ50/SPZ70

COLD RESETThe cold reset clears all data including preset data stored in theRAM to initial conditions. Execute this mode when returning theset to the customer.Procedure:

1. Press three buttons of [PLAY MODE/TUNING MODE], [DISPLAY]and I/1 simultaneously.

2. The fluorescent indicator tube becomes blank momentarily,then becomes standby states.

COMMON TEST MODEThis mode is used to check operations of Amplifier.Procedure:

1. Press the I/1 button to turn the power on.2. Press three buttons of [DSGX], [DISC SKIP/EX-CHANGE] and

[DISPLAY] simultaneously.3. When the COMMON test mode is activated, “SLEEP” and

“c PLAY” blink on the fluorescent indicator tube.– HCD-SPZ70 –4. Turn the [BASS] knob counterclockwise, “TONE MIN” is

displayed on the fluorescent indicator tube. Turn the [BASS]knob clockwise, “TONE MAX” is displayed on the fluorescentindicator tube. Turn the [TREBLE] knob clockwise orcounterclockwise, “TONE FLAT” is displayed on thefluorescent indicator tube.

– HCD-SPZ50 –4. Each time [EQ] button is pressed, the display changes starting

“TONE MIN”, “TONE FLAT” and “TONE MAX” this order.5. Turn the [VOLUME] knob counterclockwise, “VOL MIN” is

displayed on the fluorescent indicator tube. Turn the [VOLUME]knob clockwise, “VOL MAX” is displayed on the fluorescentindicator tube.

6. To release this mode, press the I/1 button.

PANEL TEST MODEThis mode is used to check the fluorescent indicator tube, LED,model, destination, software version and key.Procedure:

1. Press the I/1 button to turn the power on.2. Press three buttons of [PLAY MODE/TUNING MODE], [FUNCTION]

and [DISPLAY] simultaneously.3. Fluorescent indicator tube is all turned on and each LED of

[DSGX] and [STANDBY] blink every 0.5 seconds.4. When you want to enter the model, destination and version display

mode, press the [DISPLAY] button. The model and destinationare displayed alternately on the fluorescent indicator tube.

5. Press the [DISPLAY] button again MC version, display on thefluorescent indicator tube.

6. When [FUNCTION] button is pressed while the MC version isdisplayed, year, month and day of the software creation display.When [FUNCTION] button is pressed again, the display returnsto the MC version display.

7. Press the [PUSH ENTER] button, the key check mode isactivated.

8. In the key check mode, the fluorescent indicator tube displays“K 0 J0 V0”.

9. Each time a button is pressed, “K” value increases. However,once a button is pressed, it is no longer taken into account.All keys are pressed, display becomes “K25” (SPZ50) or“K23” (SPZ70).

10. “V” value increases 1, 2, 3 ... if turn the [VOLUME] knobclockwise, or it decreases 0, 9, 8 ... if turn the knobcounterclockwise“J” value increases like 1, 2, 3 ... if turn the [BASS] (SPZ70only) or [TREBLE] (SPZ70 only) or jog knob clockwise, or itdecreases like 0, 9, 8 ... if turn the knob counterclockwise.

SECTION 4TEST MODE

11. To release this mode, press three keys in the same manner asstep 2, or disconnect the power cord.

CD SHIP MODEThis mode moves the optical pick-up to the position durable tovibration. Use this mode when returning the set to the customerafter repair.Procedure:

1. Press the I/1 button to turn the power on.2. Press the [FUNCTION] button to select “CD”.3. Press two buttons of [PLAY MODE/TUNING MODE] and [DISC

1] simultaneously.4. After the “STANDBY” display blinks, “LOCK” is displayed

on the fluorescent indicator tube, and the ship mode is set.

CD SHIP MODE & MEMORY CLEARThis mode is used to perform CD ship mode and cold resetsimultaneously.Procedure:

1. Press the I/1 button to turn the power on.2. Press the [FUNCTION] button to select “CD”.3. Press three buttons of [DSGX], [DISC SKIP/EX-CHANGE] and

[DISC 1] simultaneously.4. After the “STANDBY” display blinks, “LOCK” is displayed

on the fluorescent indicator tube, and the ship mode is set.

ANTITHEFT LOCK MODEThis mode is used to unable to take sample disc out of disc table inthe shop.Procedure:

1. Press the I/1 button to turn the power on.2. Press the [FUNCTION] button to select “CD”.3. Press two buttons of x and Z for 5 seconds.4. The message “LOCKED” is displayed on the fluorescent

indicator tube and the disc slot is locked. (Even if pressingthe Z button, the message “LOCKED” is displayed on thefluorescent indicator tube and the disc table is locked)

5. To release from this mode, press two buttons of x and Z for5 seconds.

6. The message “UNLOCKED” is displayed on the fluorescentindicator tube and the disc table is unlocked.

CD POWER MANAGEThis mode is used to changed over CD power on/off for decreasingof reception noise in the tuner mode.Procedure:

1. Press the I/1 button to turn the power on.2. Press the [FUNCTION] button to select “CD”.3. Press the I/1 button again to turn the power off.4. Press two buttons of x and I/1 simultaneously.5. The message “CD POWER” is displayed on the fluorescent

indicator tube momentarily, then display changes “ON” or“OFF”, and CD power on/off changed over in the tuner mode.

12

HCD-SPZ50/SPZ70

CD SERVICE MODEThis mode can run the CD sled motor freely. Use this mode, forinstance, when cleaning the optical pick-up.Procedure:

1. Press the I/1 button to turn the power on.2. Press the [FUNCTION] button to select “CD”.3. Press three buttons of [PLAY MODE/TUNING MODE], [DSGX]

and [DISC 1] simultaneously, the message “SERVICE IN” isdisplayed on the fluorescent indicator tube.

4. Press the M L button to move the optical pick-up to outsidetrack and the message “SLED OUT” is displayed on thefluorescent indicator tube, or press the l m button toinside track and the message “SLED IN” is displayed on thefluorescent indicator tube.

5. Press the x button, “LD OFF” is displayed and laser diode isturned off. Each time x button is pressed, laser diode ON/OFF switch is performed.

6. To release this mode, press the I/1 button.

TUNER STEP CHANGE-OVER(EXCEPT SPZ50: AEP, UK, Russian/SPZ70: AEP, UK,Russian models)A step of AM tuning interval can be changed over between 9 kHzor 10 kHz.Procedure:

1. Press the I/1 button to turn the power on.2. Press the [TUNER/BAND] button to select “AM”.3. Press the I/1 button again to turn the power off.4. Press two buttons of M L and I/1 simultaneously.5. The message “STEP 9kHz” or “STEP 10kHz” is displayed on

the fluorescent indicator tube and thus the tuning interval ischanged over.

13

HCD-SPZ50/SPZ70SECTION 6

ELECTRICAL ADJUSTMENTS

0 dB=0.775 VDECK SECTION

1. Demagnetize the record/playback head with a headdemagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.3. After the adjustments, apply suitable locking compound to the

parts adjust.

TEST TAPE

RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENTNote: Remove the mechanical deck before the adjust. (Refer to Section 3.

DISASSEMBLY (See page 7))Procedure:

1. Mode: Playback

2. Turn the adjustment screw and check output peaks. If the peaksdo not match for L-CH and R-CH, turn the adjustment screwso that outputs match within 1dB of peak.

3. Mode: Playback

4. After the adjustments, apply suitable locking compound to thepats adjusted.

Tape Signal Used for

P-4-A063 6.3 kHz, –10 dB Azimuth Adjustment

set

test tapeP-4-A063(6.3 kHz, −10 dB) oscilloscope

V H

waveform of oscilloscope

in phase 45° 90° 135° 180°

good wrong

HP A-IN boardPHONES jack(J982)

SECTION 5MECHANICAL ADJUSTMENTS

PRECAUTION1. Clean the following parts with a denatured-alcohol-moistened

swab :record/playback head pinch rollererase head rubber beltscapstan idlers

2. Demagnetize the record/playback head with a headdemagnetizer. (Do not bring the head magnetizer close to theerase head.)

3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, appiy suitable locking compound to

the parts adjusted.5. The adjustments should be performed with the rated power

supply voltage unless otherwise noted.

TORQUE MEASUREMENTMode Torque Meter Meter Reading

2.9 – 7.4 mN⋅mFWD CQ-102C (30 – 75 g⋅cm)

(0.42 – 1.04 oz⋅inch)

FWD0.14 – 0.59 mN⋅m

Back TensionCQ-102C (1.5 – 6.0 g⋅cm)

(0.021 – 0.083 oz⋅inch)more than 5.4 mN⋅m

FF/REW CQ-201B (more than 55 g⋅cm)(more than 0.76 oz⋅inch)

TAPE TENSION MEASUREMENTMode Tension Meter Meter Reading

FWD CQ-403Amore than 90 g

(more than 3.17 oz)

set

HP A-INPHONES jack(J982)

+–

level meter

test tapeP-4-A063(6.3 kHz, −10 dB)

Screwposition

L-CHpeak

within1dB

Outputlevel

L-CHpeak

R-CHpeak

within1dB

Screwposition

R-CHpeak

14

HCD-SPZ50/SPZ70

Checking Location:

+–

CD board

TP (RFACI)TP (VC)

oscilloscope(DC range)

Procedure :1. Connect oscilloscope to TP (RFACI) and TP (VC) on the CD

board.2. Press the I/1 button to turn the power on, and press

the Z button to open the CD disc table.3. Set disc (YEDS-18) on the tray and press the CD u button

to playback.4. Confirm that oscilloscope waveform is as shown in the figure

below. (eye pattern)A good eye pattern means that the diamond shape (◊) in thecenter of the waveform can be clearly distinguished.

VOLT/DIV: 200 mVTIME/DIV: 500 ns

level:0.9 ± 0.4 Vp-p

TP(VC)

TP(RFACI)

IC201

– CD Board (Conductor Side) –

CD SECTION

Note:1. CD Block is basically constructed to operate without adjustment.2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.3. Use an oscilloscope with more than 10 MΩ impedance.4. Clean the object lens by an applicator with neutral detergent when the

signal level is low than specified value with the following checks.5. Check the focus bias check when optical pick-up block is replaced.

FOCUS BIAS CHECK

Adjustment Location: Record/Playback/Erase Head

HCD-SPZ50/SPZ70

1515HCD-SPZ50/SPZ70

CD DSPIC201

CH2RIN

MUTE

2-AXISDEVICE

(TRA

CKIN

G)(F

OCUS

)

57

64

A

3.3V(CD)DETECTOR

A

AC_SUM

58 B65 EG_IN 70RFACO 71 RFACI 3PCMD

112AOUT1

117AOUT24 PCMDI

5BCK

55FEO

53TEO

52TEI

54FEI

6 BCKIR-CH

1LRCK 2 LRCKI

59 C

60 D

50 E

51 F

66 LD

67 PD

16 CH4OUTF

15 CH4OUTR

27 OPOUT 38 MDP

AUTOMATICPOWER CONTROL

Q321LDPD

LASER DIODE

OPTICAL PICK-UPBLOCK

(KSM-213DCP)

B

C

D

E

F

41 SFDR

42 SRDR

43 TFDR

44 TRDR

45 FFDR

46 FRDR

DATA

I-V A

MP

M401(SPINDLE)

M402(SLED)

17 CH3OUTF

18 CH3OUTR

14 CH1OUTF

13 CH1OUTR

12 CH2OUTF

11 7

20

89

SSTP

39

CH2FIN 6

CH1RIN 5

CH1FIN 4

CH3RIN 22

CH3FIN 23

CH4IN 24 OPIN+ 2

CH2OUTR

M

M

FOCUS/TRACKING COIL DRIVE,SPINDLE/SLED MOTOR DRIVE

IC402

S201(LIMIT)

3.3V(CD)

108

XTAO

109

XTAI

X20116.9344MHz

CLOK 11XLAT 16SENS 20SCOR 26

DATA2 12CLK2 90

XLAT-MP3 13REQ-MP3 14

IREQ-MP3 10ACK-MP3 15

XTACN 7XRST 8

35 CD DATA37 CD CLK43 CD XLT

19 CD SCOR

6 MP3 DATA IN5 MP3 DATA OUT7 MP3 CLK

46 MP3 XLAT45 MP3 REQ47 MP3 IREQ44 MP3 ACK49 CD XTACN48 CD XRST

50 CD DRIVER MUTE

36 CD SENS LOADING MOTORDRIVE

Q1610 – 1613

M1+ 41M1– 42

M

CAM GEAR MOTORDRIVE

Q1614 – 1617

M2+ 39M2–

SW1

– SW

3,SW

5 –

SW8

SW1 – SW3,SW5 – SW8

40

ACD-L

SYSTEM CONTROLLERIC1301 (1/4)

: CD PLAY

SIGNAL PATHR-ch is omitted due to same as L-ch.

34, 3

3, 2

8,26

– 2

3

M1+M1+

MM2+M2+

CD MECHANISMDECK BLOCK

SECTION 7DIAGRAMS

7-1. BLOCK DIAGRAM – CD SERVO Section –

(Page 16)

HCD-SPZ50/SPZ70

1616HCD-SPZ50/SPZ70

AUDIO IN

R-CHJ981

CD-LA

L451BIAS OSC

MUTINGQ305

HRPE1(REC/PB/ERASE)

L-CH

R-CHR-CH R-CH

MUTINGQ307

MUTING CONTROLSWITCH

Q305, 306

MUTINGQ401

R-CHMUTING

CONTROL SWITCHQ400, 407

REC CONTROLSWITCH

Q409, 410

R-CH

REC AMPIC401

PB AMPIC301

ERASE

BIAS OSCQ453

REC SWITCHQ403

REC BIASSWITCH

Q451, 452+9V

REC/PB SELECT SWITCHQ405, 406, 408

TUNER (FM/AM)

AM

FM ANT

AM ANT

L-OUT

R-OUT

DO/STEREO

R-CH

RDS DATARDS CLK

ST DINST CLK

ST CE

FM75ΩCOAXIAL

ANTENNA

56 ST DIN/STEREO

21 RDS DATA18 RDS INT

9

4

57

10

A

9

B

TC B

IAS

ON/O

FF

54 ST DOUT55 ST CLK53 ST CE

78

TC R

ELAY

76

TC R

EC M

UTE

77

SEL

A

51

SEL

B

59

14

SI

13

SCAM

P SI

61

AMP

SC

63

LINE

MUT

E

60

HP M

UTE

58

AUDI

O IN

DET

ECT

100

CL-CH

BHP

X

OUT1

TC HALF/REC SW

INPUT SELECTOR, ELECTRICAL VOLUME,SURROUND/TONE CONTROL

IC1501

+MTR M

TAPE MECHANISMDECK BLOCK

HALF SWREC SWPHOTO OUT

CAPSTAN/REELMOTOR DRIVEQ1602, 1603

90

+SOLTRIGGER PLUNGERDRIVE

Q1604, 1605TC TRG 80

TC CAPM CNT1 79

TC PHOTO OUT 89

SYSTEM CONTROLLERIC1301 (2/4)

: TUNER (FM/AM)

: CD PLAY

SIGNAL PATHR-ch is omitted due to same as L-ch.

: TAPE PLAY

: REC

: AUDIO IN

(SPZ50: AEP,UK/SPZ70: AEP,UK)

PHONES

R-CH J982

1512

6

INH

SEL

INH

65

Q150

3

Q150

4

Q150

5

TUNER/TAPESELECT SWITCH

IC1505

13X0X2

C1

SEL1

VIN1

B1A1

1

MUTINGIC1503

R-CH

17

MUTINGCONTROL SWITCH

Q1501, 1502

MUTINGIC1504

R-CH

MUTINGCONTROL SWITCH

Q1508, 1509

HEADPHONEAMP

IC1502

7-2. BLOCK DIAGRAM – MAIN Section –

(Page 15)

(Page 18)

(Page 17)

HCD-SPZ50/SPZ70

1717HCD-SPZ50/SPZ70

SYSTEM CONTROLLERIC1301 (3/4)

L-CHC 1

A/D CONVERTERIC701(SPZ50)IC701(SPZ70)

STREAM PROCESSORIC705(SPZ50)IC705(SPZ70)

LIN 31 DATA

15 SCKI

DOUT 1230 BCKBCK 1129 LRCK

36 XFSIIN48 XFSOIN

LRCK 12

S-MASTER DATA 70

OUTL1 11

DIGITAL POWER AMPIC707

4 PWM_A

6 PWM_B

16

3

PWM_D

/SD

14 PWM_C

OUT_A 33

OUT_B 30

OUT_D 22

OUT_C 25

OUTL2 9

15

/RST

_CD

5

/RST

_AB

OUTR1 6

OUTR2 4

X70249.152MHz

21 SCDTS-MASTER SHIFT 71 22 SCSHIFT

S-MASTER LATCH 72 23 SCLATCHS-MASTER PG MUTE 66 20 PGMUTE

S-MASTER SOFT MUTE 67 19 SOFTMUTES-MASTER NSP MUTE 73 18 NSPMUTE

S-MASTER INIT 75 27 INIT

S-MASTER RST 68S-MASTER SD 69

CLOCK SHIFTIC703(SPZ50)IC703(SPZ70)

CLOCK BUFFERIC709(SPZ50)IC709(SPZ70)

(SPZ50)

DIGITAL POWER AMPIC707

2 BP

17 AP

3

/SD

OUT_B 29

OVER LOADDETECT

Q702, 703

OVER LOADDETECT

Q752, 753

OUT_A 25OUT_B 30

OUT_A 26

4

/RST

DIGITAL POWER AMPIC708

2 DP

17 CP

3

/SD

OUT_D 29

OUT_C 25OUT_D 30

OUT_C 26

4

/RST

(SPZ70)

L.P.F.

L.P.F.

L.P.F.

L.P.F.

PROTECTDETECT

Q701

R

L

+

–

+

–

SPEAKER

J860

: TUNER (FM/AM)

SIGNAL PATHR-ch is omitted due to same as L-ch.

7-3. BLOCK DIAGRAM – AMP Section –

(Page 16)

HCD-SPZ50/SPZ70

1818HCD-SPZ50/SPZ70

REMOTE CONTROLRECEIVER

IC951

FL901FLUORESCENT

INDICATORTUBE

1 LED1

FLUORESCENT INDICATORTUBE DRIVER

IC901SYSTEM CONTROLLER

IC1301 (4/4)

57POWER ON/OFF

20AC CUTRESET SIGNALGENERATOR

IC1302

RESET SWITCHQ1301

B+ SWITCHQ952

38CDM SD

84AC DET

12RESET

94 VOLUME

SEG1 – SEG16

31 –

42

14 –

29

GR1 – GR12

KEY1 – KEY3

93

– 91

D952DSGX

2 LED2D953

SOURCEDIRECT

88 STANDBY LED

4 SIRCS

D951STNDBY

LED DRIVEQ951

ROTARYENCODERVOLUME

PUSH ENTER

RV952

31 TRE A32 TRE B

ROTARYENCODERTREBLE

RV953

82 BASS A83 BASS B

ROTARYENCODERBASS

RV954

95 JOGROTARYENCODER

RV951

(JOG)

13

XOUT

15

XIN

X13025MHz

11

XCOU

T

10

XCIN

X130132.768kHz

DIN FL SD7 1CLK FL SCK8 2STB FL STB9 3

74 WAKE UP KEY

S951 – 957,S958, 959 (SPZ50)

S961 – 966,S968 – 974,S981, 982

(AC IN)

T603SUB POWER

TRANSFORMER

T31MAIN POWER

TRANSFORMER

(SPZ70)

(SPZ70)

F1LINE FILTER

T1RECT

D1+

+S1

VOLTAGESELECTOR

120 – 127V

220 – 240V(SPZ70: E2, E51)

D603

D14

4

POWER CONTROLIC601

VCC5 DRAIN

2 FB

POWER CONTROLIC11

1 VENSE

2 F/B

9 OCP

16 VG (H)

ISOLATORPH601

ISOLATORPH11

ISOLATORPH602

SHUNTREGULATOR

IC650

D1206

D1212

18VDSWITCHING

Q12

12 VG (L)SWITCHINGQ11

15 VS

8 VC1

Q601

RECTD32

RECTD31

D1211

D652 D33

+28V+4V

+3.3V(CD)

+1.8V(CD)

MOTORB+

D1204+3.3V(AMP)

+1.8V(AMP)

D1203

D1201

+3.3V(FL)

+3.3V(LED)

EVER+3.3V

+7V

+9V

+7VREGULATOR

IC1205

+9VREGULATOR

IC1202

+12VREGULATOR

IC1201

+4VREGULATOR

IC1203

REGULATORQ1607 – 1609

PROTECTDETECTQ1606

+5V

+12V

+5VREGULATOR

IC1204

+9VREGULATOR

Q1618

+9V(HP AMP)

+9V(TUNER)

+3.3V(ADC )

RIPPLEFILTERQ1510

+3.3V REGULATORIC702 (SPZ50)IC702 (SPZ70)

+1.8V REGULATORIC704 (SPZ50)IC704 (SPZ70)

+1.8VREGULATOR

IC203

D1202

DC DETECTQ651, 652

POWER ON/OFFRELAY DRIVE

Q650

VEE

FLUORESCENTINDICATOR TUBE

(FL901)RECT

D912, 922

OSCQ921, 922

F1F2

T921INVERTER

TRANSFORMER

HPB

Abbrivation

: Chilean and Peruvian modelsE51: 120V AC area in E modelE2

7-4. BLOCK DIAGRAM – PANEL/POWER SUPPLY Section –

(Page16)

HCD-SPZ50/SPZ70

1919HCD-SPZ50/SPZ70

• Circuit Boards Location• Note For Printed Wiring Boards and Schematic Diagrams

• Indication of transistor

Note on Schematic Diagram:• All capacitors are in µF unless otherwise noted. (p: pF)

50 WV or less are not indicated except for electrolyticsand tantalums.

• All resistors are in Ω and 1/4 W or less unless otherwisespecified.

• f : internal component.• 2 : nonflammable resistor.• C : panel designation.

• A : B+ Line.• B : B– Line.• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.– CD Board –no mark :CD PLAY– Other Boards –no mark : TUNER (FM/AM)( ) : CD PLAY〈〈 〉〉 : TAPE PLAY{ } : TAPE REC

∗ : Impossible to measure• Voltages are taken with a VOM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal produc-tion tolerances.

• Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances.

• Circled numbers refer to waveforms.• Signal path.

F : TUNER (FM/AM)J : CD PLAYd : TAPE PLAYG : RECf : AUDIO IN

• AbbreviationAR : Argentina modelAUS : Australian modelE2 : 120 V AC area in E modelE51 : Chilean and Peruvian modelsKR : Korean modelMX : Mexican modelRU : Russian modelSP : Singapore model

Note on Printed Wiring Board:• X : parts extracted from the component side.• Y : parts extracted from the conductor side.• f : internal component.• : Pattern from the side which enables seeing.(The other layers' patterns are not indicated.)

Caution:Pattern face side: Parts on the pattern face side seen from(Conductor Side) the pattern face are indicated.Parts face side: Parts on the parts face side seen from(Component Side) the parts face are indicated.

• Circuit Boards Location

Note: The components identified by mark 0 or dotted linewith mark 0 are critical for safety.Replace only with part number specified.

C

B

These are omitted.

E

Q

B

These are omitted.

C E

Q

HP board

POWER boardMAIN board

SP board

TUNER

AMP board

CD board

TC board

PANEL board

FL board

Ver. 1.1

HCD-SPZ50/SPZ70

2020HCD-SPZ50/SPZ70

7-5. PRINTED WIRING BOARD – CD Board – : Uses unleaded solder.

R256

C257

R260

C206C205

C322

R323

R322

R321

R324

C223

C321

C268

C267

R271

R203

C226

R201

C227

C110

C108

C102

C203

C204

C101

C274

C202

R207

C215

R202

C201

R423

R421

C424

C276

C210

Q321

C207

C266

C275

C323

C277

C406

R401

C401

C219

R276C271

C272

C104

C105

C107

C109

C232

C220

X201

IC203

C403

R257

C258

C260

C261

R258

C304

C208

R101

R265

R266

R267

C264

C265

R278

C111

C214 R2

70

C221

C292

C291

R292

R291

IC201 C217

C218

C224

R451

R102

R103

R104

R105R10

7

R108

R109

R110

R111

C451

IC402

C256

C251

C252

C254

C253R254

R255

R252

R253

CN301

C213

C222

C405

R113

C404

R452

C112

R275R277

C103

R112C301

C303

C273

R268

C113

CN102

C230 R250

R280

M401

M402

S201

E 1-868-067-12

(12)

CD BOARD (COMPONENT SIDE)

1

3

5

4

1-868-067-

12

(12)

CD BOARD (CONDUCTOR SIDE)

M

M

1

1 7 14

28 22

8

21 15

30

90

91

120

60

31

61

(SPINDLE)

(LIMIT)

(SLED)

AMAIN

BOARDCN1309TP

(RFACI)

TP(VC)

OPTICAL PICK-UP BLOCK(KSM-213DCP)

A

B

C

D

E

F

1 2 3 4 5 6 7 8 9 10

(Page 24)

• See page 19 for Circuit Boards Location.

HCD-SPZ50/SPZ70

2121HCD-SPZ50/SPZ70

7-6. SCHEMATIC DIAGRAM – CD Board – • See page 38 for Waveforms. • See page 39 for IC Block Diagrams. • See page 46 for IC Pin Function Description.

C208

C205

R324

R101

R292

C1

10

R451

R102

R103

R104

R105

R107

R108

R109

R110

R111

R255

R253

C406

R254

R252

R2

50

R2

68

R322

R321

C2

64

CN301

C222

C213

R291C201

C219

R112

R113

C203

C1

08

C1

02

C1

01

C1

03

C1

05

C1

11

C1

04

C1

09

C1

07

C1

13

C1

12

R275

R277

R276 C271

C221

C2

73

C2

61

C2

60

R2

65

R266

R267

R2

58

C2

58

R2

60

C256

C207

C254

C253

C252

C251

C232C206

C224R

27

8

C272

C204

C218

C291

C292

C217

C202

R401

C303

C322

C321

R323

R421

C404

R207 C226

C2

65

C210

R256

C257

C323

C424

R423

C405

M402

M401

IC402

TP

C230

TP

C220

C274

R257

C304

IC201

C401

R202

C268 C215

C276

C277

R201

CN102

C266C267

R203

C275

C214

X201

R270

R271

C223

R280

R452 C451

Q321

S201

C227

IC203

C301

0.1

0.1

100k

100

100

22

0p

22k

100

100

100

100

100

100

100

100

100

1k

1k

0.1

10k

10k

1M

10

k

2.2

2.2

10

00

p

16P

0.1

0.1

10010010V

0.1

100

100

10010V

22

0p

22

p

22

p

22

p

22

p

22

0p

22

0p

22

0p

22

0p

22

p

22

p

100

100

47k 0.1

0.1

47

0p

0.0

1

0.4

7

4.7

k

1k

4.7k

22

0k

22

0p

0

0.1

100 10V

4700p

470p

4700p

470p

0.1

0.1

0.11

00

0.1

0.1

0.1

470p

470p

0.1

0.1

0

10

1

1000p

0

0

0.1

0 1

0.1

0.1

22k

0.1

10010V

0.1

10k

0.1

BA5947FM

100p

0.1

0.1

100k

1

CXD3014A-201R

22010V

0

10p 0.1

1

1

0

23P

10p5p

5p

0.1

16.9344MHz

1k

1M

0.1

0

10k 0.047

2SA2119K

1

BH18LB1WG-TR

0.1

SP

-

SP

+

SP+

SP-

SL+

SL-

SL

+

SL-

OP

IN-

OP

IN+

CH

1FIN

CH

1R

IN

CH

2FIN

CH

2R

IN

GN

D

CN

F4

PO

WV

CC

CH

2O

UT

R

CH

2O

UT

F

CH

1O

UT

R

CH

1O

UT

FC

H4

OU

TR

CH

4O

UT

F

CH

3O

UT

F

CH

3O

UT

R

PO

WV

CC

MU

TE

GN

D

CH

3R

IN

CH

3FIN

CH

4IN

CH

4C

AP

A

OP

OU

T

PR

EV

CC

VR

EF

GA

IN-S

W

MIRR

DFCT

FOK

VSS

LOCK

MDP

SSTP

IOVSS1

SFDR

SRDR

TFDR

TRDR

FFDR

FRDR

IOVDD1

AVDD0

AVSS0

E

F

TEI

TEO

FEI

FEO

VC

A

B

C

D

AV

DD

4

RFD

CO

PD

SE

NS

AC

_S

UM

EG

_INLD

PD

RFC

AV

SS

4

RFA

CO

RFA

CI

AV

DD

3

BIA

S

AS

YI

AS

YO

VP

CO

VC

TL

AV

SS

3

CL

TV

FIL

O

FIL

I

PC

O

BC

KI

LR

CK

I

LR

CK

VSS

PC

MD

BC

K

VDD

IOVDD2

DOUT

TEST

IOVSS2

XVSS

XTAO

XTAI

XVDD

AVDD1

AOUT1

VREFL

AVSS1

AVSS2

VREFR

AOUT2

AVDD2

IOVDD0

IOV

SS

0

XT

AC

N

XR

ST

VS

S

VD

D

SE

NS

WFC

K

XU

GF

XP

CK

GFS

C2P

O

SC

OR

VD

D

CO

UT

PC

MD

I

CL

OK

SV

SS

SV

DD

SV

SS

SVDD

VSS

SV

DD

VD

D

VS

S

TE

ST

1

SV

SS

SVSS

SVDD

JTAGTCK

JTAGTDI

JTAGTDO

JTAGTMS

TRST

VDD

TES1

PLLVDD

PLLVSS

AC

K-M

P3

RE

Q-M

P3

IRE

Q-M

P3

SS

TB

-MP

3

XLA

T-M

P3

XL

AT

CLK2

DA

TA

DA

TA

2

T+

VC

GND

LD

PD

F+

T-

F-

VCC

D-OUT

E

D

A

B

C

F

VR

GN

D

(LIMIT)

AUTOMATIC

POWER

CONTROL

CD DSP

FOCUS/TRUCKING

(SPINDLE)

(SLED)

(VC)

(RFACI)

+1.8V REGULATOR

D-GND

L-CH

A-GND

R-CH

M-GND

M+7V

COIL DRIVE,

SPINDLE/SLED

MOTOR DRIVE

D-MUTE

XATCN

NC

VO

UT

VIN

ST

BY

CD DATA

MP3 CLK

D+3.3V

A+3.3V

CD XRST

MP3 IREQ

CD CLK

MP3 DATA

MP3 XLAT

MP3 REQ

MP3 ACK

CD XLAT

CD SENS

CD SCOR

(Page27)

HCD-SPZ50/SPZ70

2222HCD-SPZ50/SPZ70

C331

C332

C433

JR303

JR304

R444

JR31

0

Q409

R452Q452

R461

R460R463

R464

R482

R484

R485

R489

R490

R350

Q408

Q406

Q405

IC401

IC301

C417

R326

R325

C328

C327

C326C323

C324

C325C316

C315

R324R323R318

R317

R320

R319R312

R311

R314

R313

R310

R309

JR302

JR306

Q306

Q305

R488

R303

R304

C303

C304Q407

C354

R307

R308

R401

R483

R402

R403

R404

R405

R406

R423

R408

R409

R410

R411

R412

R413

R414

R407R416

R445

R424

R415

R446R427 R428 R441

C403

C404

C405

C406

C413

C414

C415

C416

C431

Q401

Q402Q403

Q400

Q404

R440

R429

R430

R431

R432

R433

R434

R435

R436

R437

R438R439

C430D

401

R466

JR40

2

R456

R457

R458

C461

C462

R481

C412

R453

R454

R450

R462

R459

R449

FB301

R451

R465

R351

R349

C352

C353

JR307

JR301

C418

D301

Q410

R442R455

R443

C411

JR311R316

R315

C356

Q451

JW31

6

JW315

JW31

3

JW30

3

C351

C330

C318

C317

JW30

6

JW302

JW31

1

C458

Q453

C409

L451

JW317

JW31

2

JW310

JW31

4

C402

C410

JW30

9

C454

C329

JW31

8

CN302

JW304

C453

JW30

5

C452

JW30

7

C456

CN008

C401

JW30

1

JW319JW32

0

JW308

C350

E

E

E

E

E

S

EE

E

E

E

E

E

E

G S

D

S

GD

AK

A

1 8

4 5

4

BIAS OSC

61

3

1-869-722-

11, 12, 13

(11, 12, 13)

TC BOARD

1

G

D

8

4

18

5

BMAIN

BOARDCN1303

HRPE1REC/PB/ERASE

HEADA

B

C

D

1 2 3 4 5 6 7

(Page 24)

• SemiconductorLocation

Ref. No. Location

D301 D-6D401 C-2

IC301 C-6IC401 C-3

Q305 B-5Q306 B-5Q400 C-5Q401 B-4Q402 B-4Q403 B-3Q404 B-3Q405 D-7Q406 D-7Q407 B-4Q408 D-7Q409 D-5Q410 D-5Q451 C-2Q452 D-1Q453 B-2

7-7. PRINTED WIRING BOARD – TC Board – : Uses unleaded solder.• See page 19 for Circuit Boards Location.

Ver. 1.3

HCD-SPZ50/SPZ70

2323HCD-SPZ50/SPZ70

7-8. SCHEMATIC DIAGRAM – TC Board – • See page 38 for Waveforms.

Q410

R481

R349

R482

R484

R483

R488

R489

R325

R326

R442

R490

IC401(1/2)

IC401(2/2)

C411

C412

R452

Q453

C458

C454

C453

R457C452

R440

R430

R429

R431

R432

R433

R434

Q402

Q401

R444

R351

D301

C351

C3

50

Q451

R317

C323 C325

C315

R311

R313

C324 C326

R318

C316

R312

R314

R309

R310

C456

R462

R464

R461

R443

C354

Q400

C303

C304

C461

C462

R315

R316

IC301(1/2)

IC301(2/2)

C3

27

C3

53

C3

28

C352

Q408

R350

Q406

Q405

CN302

Q305

Q306

Q407

R436

C416

C415

R435

Q403

Q404

R413

R410

R409

C409

C410

R411

C417

R414R412

C418

C405

R407

R416

R408

C406

C414

C413

C431

R405

C401

C403

C430

R406C404

C402

FB301

CN008

JR402

R451

R455

R454R453

Q452

R449 R450 R456

L451

R459 R460

R463

R308

R307

C356

R439

D401

R458

Q409

R415

C433

JR303

JR304

R303

R304

C317

C318

R323

R319

R324

R320

JR310

R441

R437

R438

R465

R466

R427

R445

R423

R428R446

R424

HRPE1

R404R402

R403R401

R485

C329

C330C331

C332

RT1N431C

4.7k

100

47k

22k

22k

22k

22k

100

100

47k

4.7k

BA4558

BA4558

10p

10p

47k

2SC2001

0.0022

0.0047

0.001

22k4716V

10k

10k

10k

1k

1k

47k

47k

2SK2158

2SK2158

100k

1k

UDZW-TE17-4.3B

22010V

22

01

6V

KTA1271Y-AT

470k

0.0047 0.0022

47p

220

47

0.0047 0.0022

470k

47p

220

47

470

470

0.01

2.2k

1k

2.2k

10k

0.1

2SK2158

1000p

1000p

470p

470p

100

100

NJM14558M-TE2

NJM14558M-TE2

22

0p

0.1

22

0p

0.1

2SA1235

0

2SA1235

2SC3052

8P

2SC3052

2SC3052

2SA1235

10k

0.0047

0.0047

10k

2SA1235

2SA1235

220k

100k

100k

1050V

1050V

470k

0.01

220k470k

0.01

220p

4.7k

2.2k

4.7k

220p

220p

220p

0.1

47k

0.150V

47p

0.1

47k47p

0.150V

0

11P

0

10k

10

4.7k4.7k

2SC3052

22 22 22

0 0

1k

4.7k

4.7k

1050V

4.7k

MC2838

4.7

RT1N431C

2.2k

0.01

0

0

100k

100k

2250V

2250V

0

18k

0

18k

0

0

10k

10k

1k

1k

100

100k

22k

100100k

22k

1k100k

1k100k

4.7k

0.1 50V

0.1 50V220K

220K

A-GND

83

2

5

67

4

PB-L

REC-L

PB-R

REC-R

REC/PB SW

DECK-D-GND

1

1

2

3 4

5

6

13

2

8

6

54

7

PB AMP

Q405,406,408

REC/PB SELECT SWITCH

MUTING

MUTING

S

S

Q400,407

MUTING CONTROL

SWITCH

MUTING

MUTING

REC SWITCH

REC SWITCH

REC AMP

REC-MUTE

Q409,410

REC CONTROL SWITCHQ451,452

REC BIAS SWITCH

BIAS

OSC

OSC

BIAS

S

L-CH

R-CH

ERASE

(REC/PB/ERASE)

A+9V

BIAS ON/OFF

M+12V

(Page26)

HCD-SPZ50/SPZ70

2424HCD-SPZ50/SPZ70

R1397

R1418

R1421

R167

4

JR1001

JR1003

JR1005

JR1008

JR10

09

R1203

IC1501

D1201

IC1302

R1603

C1362

R1604

R1301

R1302

R1303

R1304

R1305

R1306

R1307

R1309

R1311R1313

R1400R1500

R1482R1483R1

486

R148

7R1489

R1491

R149

2 R1493

R1497

R1382

R138

3

R138

8

R138

9

R1391R1392

R1393

R1394 R1395

D130

3

IC1301

D120

2

D1203

R1378

R1426

C1316

C1311

C131

0

R131

6

R141

7R1412

Q130

1

C1404

C1312

C1403

R1401R1402

R1423

C1402

C1401

R1321

R1318

R1319R1320

R1323

R1324

R1325

R1326

R132

8

R1424R1425

R1377

R1376

R1474

R1366

R1367R1368

R1371

R1369

R1375R1373

R1372

R1357

R1356

R1355R1354

R1353R1352

R160

7

R1608

R1605R1606

R1609

R1610

R1611

R1612R1613

R1614C1602

D1601

Q160

5Q1

603

R1201

R142

8

D1305

C1218

R1551

IC1503

C1202C1204

C1206

C1208

R1552

R1501

R164

6

R1512

R164

8

C1503

R152

3

R1572

R1573

R152

1R1

519

Q150

2Q1

501

R1502

R1520

R1518

R136

1

R136

3

R150

6

R1516

C1665

C1501

R155

6

R151

4

R1511

R1513

Q150

5

C1213

C1506C1636

IC1505

R1202IC1204

C121

1

Q150

3

C1628

C1615

R1420

R1642

C1612

Q150

4

R1522

R1643

R1693

R169

2

R1347R1348

R1509

R1346R1345

R1343

R151

0

R1560R1

575

R1507

R1557

Q150

9 Q15

08R1504

R143

3

R143

4

R1432

R1431

R1334

R133

3

R133

6R1

335

R133

2

R133

1R1370

R133

7

IC1504

D120

4

R1344

IC1502

R1349

R1350

Q1510R1550

R155

8

R1559

C1531

R1505

R151

5

R150

3

R155

3R1

565

R1555

R155

4

R1627

R1631

R163

9

R163

5

R1626

R1630

R163

8

R163

4

R1629 R16

28

R1632

R163

3

R1640R1641

R1636

R1637

Q161

0

Q161

2

Q161

6

Q161

4

Q161

1

Q161

3

Q161

7Q1

615

Q160

9Q1

608

Q160

6

R1625

R162

2R1621

R1620

R1619

R161

5

R161

6

C1603

R1456

R162

3

C1220

D1602

R1644R1645

R1429

R1430

C1217

1

3 4

6

JW12

01

JW12

02

JW10

00

JW10

16

JW10

83

JW1086

JW1103

JW1117JW1118

JW1154

JW1081

JW10

80

JW1044

JW1112

JW1167

JW10

28

JW1010

JW11

51

JW11

68

JW1009

JW1135

JW1085

JW1187

JW12

03

JW12

11

JW11

85

JW1098

JW16

23

JW1625

JW16

26

JW1627

JW16

21

JW16

22

X1301

EP1202

CN1306

CN1302

CN1305

CN1304

CN1303

X1302

Q1604

C130

1

Q1602

C1502

CN1307

IC1203

IC1205

IC1202IC1201

CN1203

C1214

CN1308

C152

3

C1505

C1555

C1504

C1509

C1559

C1510

C1560

C1512

C1562

C1203

C1205

C1507

C1212

CN1310

C1561

C1511

C1209

C1563

C1513

C1201

D121

1

CN1309

1

22223

C1614

C1664

C1629

C1616

C1613

C1526

C1576

D121

2

C1518

C1519

C1521

C152

0

C152

2

C1595

C1596

C1558

C1552

C1508

C1565C1567

C1532

C1635

C1515

C1517

Q160

7

EP1201

D120

7

D1206

C1207

CN1201 CN1202

JW10

63

JW11

37

JW11

74

C1637

Q1618

C1550JW1053

JW1188

JW1189

JW1190

JW1191

JW1057

JW1100

JW1119

JW1022

JW1131

JW10

03

JW12

05

JW10

05

JW10

04

JW10

14

JW10

15

JW10

08

JW10

11

JW10

62

JW12

10

JW10

23

JW10

30

JW10

19

JW10

65

JW10

66

JW10

49

JW10

13

JW10

46

JW10

68

JW10

69

JW11

36

JW10

34JW

1051

JW11

01

JW11

02

JW10

24

JW1036

JW1035

JW1096

JW1109

JW1020

JW1116

JW1021

JW1038

JW10

25

JW1058

JW1017

JW1031

JW12

54

JW1253

JW1195

JW1075

JW1002

JW10

74

JW10

73

JW1155

JW1156

JW1157

JW1158

JW10

90

JW12

12

JW10

77

JW1193

JW11

98

JW11

97

JW1124

JW11

99

JW1194JW1196

JW11

39

JW11

38

JW10

61

JW10

32

JW11

80

JW11

79

JW11

78

JW11

86

JW11

83

JW11

84

JW11

81

JW11

82

JW11

76

JW11

75

JW11

52

JW12

07

JW11

73

JW11

77

JW11

34

JW11

33

JW11

32

JW11

27

JW11

26

JW1115

JW10

82

JW1084JW1041

JW10

40

JW10

39JW

1125

JW1001

JW10

43

JW1130

JW11

11

JW10

47

JW10

48

JW11

05

JW12

09 JW12

51

JW12

52

JW12

50

JW11

72

JW10

45

JW1120

JW10

70

JW11

92

JW10

37

EE

E

E

E E

E

E

E

E

E

EE

E

E

E E

E

E

E

E

E

E

E

E

E

1

100

30 31

50

51

8081

(CHASSIS)(CHASSIS)

1-86

9-71

9-

11, 12

(11, 12)

MAIN BOARD

E1AMP

BOARDCN705

E2AMP

BOARDCN705

SPZ50:AEP,UK/SPZ70:AEP,UK

A CD BOARDCN102 TUNER(FM/AM)SUPPLIED WITH THEASSEMBLED BLOCK

FM75ΩCOAXIAL

ANTENNA

AM

H1AMP

BOARDCN700

H2AMP

BOARDCN700

(SPZ50) (SZP70)

GPOWERBOARDCN604 F

POWERBOARDCN32

(SPZ70)

(SPZ70)

TAPE MECHANISMDECK BLOCK

SUPPLIED WITH THEASSEMBLED BLOCK

SPZ50:RU,SP,KR,AUS/SPZ70:RU,E2,E51,MX,AR

SPZ50:RU,SP,KR,AUS/SPZ70:RU,E2,E51,MX,AR

(SPZ70)

(SPZ70)

SPZ50:AEP,UK/SPZ70:AP,UK

C PANELBOARD BTC

BOARDCN008 D

FLBOARD J

HP A-INBOARDCN981

CD MECHANISMDECK BLOCK

SUPPLIED WITH THEASSEMBLED BLOCK

A

AK K K

K

K

KA

1

3 4

5

1 9

AK

K

1

23

1

3

1 6

4

3 1

3

15

4

31 1 3 1 3

2

1

8

1

9

16

(SPZ50)

(SZP70)

A

B

C

D

E

F

G

H

I

J

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

SPZ50:AEP,UK,RU/SPZ70

7-9. PRINTED WIRING BOARD – MAIN Board – : Uses unleaded solder.

(Page 32) (Page 22) (Page 33) (Page 33)(Page 20)

(Page 36) (Page 36)(Page 28) (Page 30)

(Page 28)

(Page 30)

Ref. No. LocationRef. No. Location

• Semiconductor Location

Ref. No. Location Ref. No. Location Ref. No. Location

D1201 C-1D1202 D-1D1203 E-1D1204 C-9D1206 H-12D1207 H-12D1211 I-6

D1212 F-6D1303 D-3D1305 F-3D1601 B-1D1602 E-15

IC1201 C-14

IC1202 C-13IC1203 C-12IC1204 B-11IC1205 J-13IC1301 D-4IC1302 G-2IC1501 E-10

IC1502 F-7IC1503 D-9IC1504 G-7IC1505 F-12

Q1301 F-3Q1501 D-10

Q1502 D-10Q1503 F-12Q1504 E-12Q1505 F-13Q1508 G-7Q1509 G-7Q1510 E-7

Q1602 C-2Q1603 C-1Q1604 B-2Q1605 B-1Q1606 F-6Q1607 F-6Q1608 E-6

Ref. No. Location Ref. No. Location

Q1610 E-5Q1611 E-5Q1612 E-5Q1613 E-5Q1614 F-5Q1615 F-5Q1616 F-5

Ref. No. Location

Q1617 F-5Q1618 E-15

• See page 19 for Circuit Boards Location.

Ver. 1.3

Note: Refer to SUPPLEMENT-1 for the MAIN board of HCD-SPZ70 Korean model.

Note: Refer to the Servicing Notes “NOTE OF REPLACING MAINBOARD, IC1301 (MAIN BOARD), C25 (POWER BOARD)OR POWER BOARD” (page 4), when you exchange theIC1301 or MAIN board.

HCD-SPZ50/SPZ70

2525HCD-SPZ50/SPZ70

7-10. SCHEMATIC DIAGRAM – MAIN Board (1/3) – • See page 38 for Waveforms. • See page 39 for IC Block Diagrams. • See page 46 for IC Pin Function Description.

R1

31

1

R1

31

3

R1

31

6

R1

31

9

R1

32

0

R1

32

3

R1

32

4

R1

32

5

R1

32

6

R1

32

8

R1402

R1

41

7

R1

42

3

R1

42

6

R1456

CN1306

R1486

R1487

R1388

R1489

R1491

R1492

R1493

R1497

R1389

R1391

R1392

R1393

R1394

R1395

R1605

R1607 R1608

R1606

R1401 C1404

R1

37

8

R1

37

7

R1

37

6

R1

37

5

R1

47

4

R1

37

3

R1

37

2

R1

37

1

R1

37

0

R1

36

9

R1

36

8

R1

36

7

R1

36

6

C1

36

2

R1

35

7

R1

35

6

R1

35

5

R1

35

4

R1

35

3

D1303

R1500

R1614 R1613

R1612C1602

Q1603

R1610

Q1604

R1609

R1343

R1344

R1345

R1346

R1347

R1348

R1349

R1350

R1337

R1336

R1335

R1334

R1333

R1434

R1433

D1201

R1

30

1

R1

30

2

R1

30

3

R1

30

4

R1

30

5

R1

30

6

R1

30

7

C1

31

6

R1

30

9

X1

30

1

C1

31

1

C1

31

0

X1302

R1

42

4

R1

42

5

R1

42

8

R1

42

9

R1

43

0

R1412

C1312

D1305 C1403

CN1304

Q1605

D1202

C1301

D1203

C1218

C1220

EP1202

D1601

R1352

R1332

R1331

R1432

R1431

IC1302

R1

41

8

R1318 R1321 R1420

C1402

R1421

C1401

IC1301

R1382

R1383

R1397

R1483

R1482

R1400

Q1301

CN1305

Q1602

R1611

22

0k

0 0 10

0

47

k

10

0

10

0

10

0

10

0

10

0

47k

10

k

10

k

10

k

10k

9P

10k

10k

100

1k

3.3k

3.3k

3.3k

100

100

100

100

100

100

2.2k

2.2k 4.7k

10k

47k 0.1

10

0

10

0

10

0

10

0

1M

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

0.1

10

0

10

0

10

0

10

0

10

0

MC2836

10k

2.2k 2.2k

1k0.0047

RT1N141C

2.2k

KTA1273Y-AT

47k

100

100

100

100

100

100

100

100

100

100

100

100

100

10k

10k

MC2836

10

0

10

0

10

0

10

0

10

0

10

0

10

0

0.1

10

k

32.7

68K

Hz

22

p

22

p

5MHz

10

k

10

k

10

k

4.7

k

4.7

k

10k

0.1

1SS355 0.1

7P

RT1N141C

MC2836

10006.3V

1SS355

0.1

0.1

1SS355

100

100

100

10k

10k

PST3629NR

0

100 100 10k

0.1

0

0.1

M30622MEP-A36FPU0 (TYPE A)(SPZ50:AEP,UK,RU/SPZ70:AEP,UK,RU)

M30622MEP-A38FPU0 (TYPE B)M30622MEP-B09FPU0 (TYPE C)

100

100

∗

10k

10k

100

2SC3052

KTA1273Y-AT

2.2k

A1

A2

A3

A4

A5

A6

A7

C1

C2

C3

C4

C5

C6

C7

100

1 2 3

82

83

94

95

91

92

93

88

82

83

88

92

23

24

25

26

28

33

34

39

40

41

42

18

19

21

35

36

37

43

44

45

46

47

48

49

50

54

55

56

53

51

76

77

78

79

80

4

4

94

95

93

91

58

59

60

61

66

67

68

65

63

69

70

71

72

73

75

38

32

31

90

89

84

79

80

89

90

5 7

31

32

1

2

3

∗

MGND

+MTR

+SOL

REC SW

PHOTO OUT

GND

DGND

KEY2

FL DATA

FL CLK

FL STB

DGND

LED DSGX

LED DIRECT

SIRCS

+3.3V

LED DSGX

LED DIRECT

BASS A

TREBLE A

BASS B

TREBLE B

KEY3 RETURN

EVER+3.3V

SIR

CS

MP

3 C

LK

BY

TE

XC

IN

XC

OU

T

RES

ET

XO

UT

XIN

NM

I

CD

SC

OR

AC

CU

T

IIC

CL

K

CD SENS

CD CLKW

AK

E U

P K

EY

TC HALF/REC SW

SPEC IN

KEY2

KEY1

VREF

CD DATA

MP

3 D

AT

A I

N

MP

3 D

AT

A O

UT

FL

SC

K

FL

ST

B

SW

8

SW

7

SW

6

SW

5

TRE A

M2+

M2-

M1+

M1-

CD XLT

MP3 ACK

MP3 REQ

MP3 XLAT

MP3 IREQ

CD XRST

CD XTACN

ST

TU

NE

D

DRIVERMUTE

CD

ST

CE

ST

DO

UT

ST

CL

K

ST

DIN

/ST

ER

EO

PO

WE

R O

N/O

FF

S-M

AS

TE

R P

G M

UT

E

S-M

AS

TE

R S

OFT

MU

TE

S-M

AS

TER

RS

T

S-M

AS

TER

SD

S-M

AS

TER

DA

TA

S-M

AS

TE

R S

HIF

T

S-M

AS

TE

R L

AT

CH

S-M

AS

TE

R N

SP

MU

TE

S-M

AS

TE

R I

NIT

HP

MU

TE

LIN

E M

UT

E

AM

P S

I

AM

P S

C

RE

LA

YT

CM

UT

ET

C R

EC

ON

/OFF

TC

BIA

SC

AP

M C

NT

1T

C

EEPROM SDA

EEPROM SCL

STANDBY LED

KEY3

VOLUME

JOG

AUDIO INDETECT

+6.2V

LED STANDBY

JOG

VOLUME

KEY3-1

KEY1

NC

CDM SD

SE

L B

SE

L I

NH

AC DET

TC PHOTO OUT

BASS A

BASS B

RD

S I

NT

RD

S D

AT

A

SW

3

TRE B

SW2

SW1

(CHASSIS)

(1/3)

Q1604,1605

Q1602,1603

CAPSTAN/REEL MOTOR DRIVE

HALF SW

(SPZ70)

VC

C

VS

S

VS

S

VC

C

AVSS

AVCC

SEL A

FL

SD

IIC

DA

TA

NO

US

E

NO

US

E

NO USE

TR

GT

C

NO USE

SPZ50:AEP,UK/

SPZ70:AEP,UK

SPZ50:RU,SP,AR,AUS/

SYSTEM CONTROLLER

(SPZ70)

RESET SWITCH

∗ R1497

470(SPZ70:E2,E51,MX,AR)

1k(SPZ50:AEP,UK/SPZ70:AEP,UK)

11P(SPZ50)

17P(SPZ70)

(SPZ70)

DDC GND

THE ASSEMBLED

BLOCK

SUPPLIED WITH

TAPE MECHANISM

DECK BLOCK

RESET SIGNAL GENERATOR

SPZ70:RU,E2,E51,MX,AR

CN

VS

S

220(SPZ50:RU/SPZ70:RU)

TRIGGER PLUNGER DRIVE

SPZ50:RU,SP,KR,AUS/

SPZ70:RU,E2,E51,MX,AR

SPZ50:AEP,UK,

RU/SPZ70

∗ R1397

4.7k(SPZ50:RU/SPZ70:E2,E51,MX,AR)

0(SPZ50:SP,KR,AUS)

(Page34)

(Page35)

(Page27)

(Page27)

(Page26)

Ver. 1.3

Note: Refer to SUPPLEMENT-1 for the MAIN board of HCD-SPZ70 Korean model.

Note: Refer to the Servicing Notes “NOTE OF REPLACING MAINBOARD, IC1301 (MAIN BOARD), C25 (POWER BOARD)OR POWER BOARD” (page 4), when you exchange theIC1301 or MAIN board.

HCD-SPZ50/SPZ70

2626HCD-SPZ50/SPZ70

7-11. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • See page 39 for IC Block Diagrams.

Q1501

R1520

R1518

IC1501

IC1203 IC1202

IC1201

IC1502

Q1508

Q1503 Q1504

C1213

R1644

R1558

R1559

R1513

R1202

R1645

R1506

R1556

R1501 R1551

R1502

R1552

R1363R1361

R1521

R1519

R1515

R1565

R1554

R1503

R1553

R1509

R1557

R1510 R1560

R1550

R1522

R1201

R1203

C1207C1205

C1212

C1209

C1201

C1203

C1563

C1562

C1561

C1555

C1504

C1513

C1512

C1511

C1505

C1

50

2

C1558

C1508

C1532

C1565

C1515

C1552

C1596

C1595

C1507

C1637

D1602

EP1201

Q1502

CN1203

CN1202

CN1201

Q1509

IC1204

C1

50

1

C1522

C1521

C1520

C1523

C1519

C1518

C1503

C1208

C1206

C1211

C1531

C1202C1217

C1204

JW1203

JW1202

R1504

C1550

IC1503

R1555

Q1618

Q1510

C1506

R1512R1511

R1575IC1504

Q1505

R1514 R1516

IC1505

R1523C1526

R1573C1576

CN1302

CN1303

D1204

CN1310

JW1612

R1507 C1517

R1505

C1510

C1560

C1559 C1509

R1572

JW1201

IC1205

JW1613

C1567

RT1N141C

220k

220k

BD3870FS

TA7804LS TA7809S

NJM4580MD

RT1N141C

RT1N141C RT1N141C

0.01

470

2.2k

2.2k

2.2k

10k

100

10k

10k

220 220

10k

10k

00

10k

10k

100k

100k

4.7k

1k

1k

1k

47

100k 100k

4.7k

100k

100k

22k

47010V

47010V

47010V

22010V

220025V

47016V

1 50V

1 50V

10 50V

10 50V

22010V

1 50V

1 50V

10 50V

10 50V

22

01

0V

1050V

1050V

10016V

1050V

1050V

10016V

150V

150V

100 16V

100 16V

UDZSTE-1710B

RT1P141C

2P

2P

3P

RT1P141C

MM1615ANLE

0.1

0.0022

0.1

0.1

0.0022

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.10.01

0.1

4.7k

22016V

RT3C55M

22k

KTC3198GR

2SC3052

0.1

10k10k

1kRT3C55M

RT1N141C

2.2k 10k

MC14052BDTR2

100k150V

100k150V

19P

11P

MC2836

47 220 10V

22k

1 50V

1 50V

1 50V 1 50V

100k

TA7807LS

220 10V

A1

A2

A3

A4

A5

A6

A7

B1

B2

B3

B4

B5

60

61

63

58

51

59

65

C1

C2

VIN1

VIN2

A1

A2

B1

B2

C1

C2

21

18

56

55

54

53

84

66

67

68

69

70

71

72

73

75

VIN1

VIN2

76

77

78

SC

VIN1

SEL1

VIN2

SEL2

A1

A2

B1

B2

C1

C2

FILTER

GND

SI

VCC

CAP

OUT2

OUT1

BOUT2

BNF2

BOUT1

BNF1

TNF2

TNF1

12V

GND

GND

GND

RDS DATA

RDS CLK

DO/STEREO

ST CLK

ST DIN

ST CE

R OUT

AGND

L OUT

+9V

4V(SUB)

NC

C2

B2

E2

E1

B1

C1

C2

B2

E2

E1

B1

C1

INH

VEE

GN

D

VC

CY

0

Y2

Y Y3

Y1

BA

X3

X0X

X1

X2

VO

VICONT

GND

NOISE

POWER ON/OFF

(CHASSIS)

(2/3)(SPZ50)

(SPZ70)

16V

+12V REGULATOR

G IO

IO GIO G

+9V REGULATOR+4V REGULATOR

+5V REGULATOR

INPUT SELECTOR,ELECTRICAL VOLUME,

SURROUND/TONE CONTROL

+7V REGULATOR

IGO

Q1501,1502

MUTING CONTROL

SWITCH

MUTING

HEADPHONE AMP

GND

VCC

+9V REGULATOR

RIPPLE FILTER

Q1508,1509

MUTING CONTROL SWITCH

MUTING

INVERTERINVERTER

INVERTER

TUNER/TAPE

SELECT SWITCH

/OTW

OVF

/RST

DGND

/SD

DGND

INIT

D+3.3V

AGND

AGND

A+5V

M+12V

BIAS ON/OFF

A+9V

REC/PB SW

PGMUTE

SOFTMUTE

SCDT

SCSHIFT

SCLATCH

NSPMUTE

L-IN

R-IN

DECK-D-GND

REC-MUTE

PB-R

PB-L

A-GND

AM

ANTENNA

COAXIAL

FM75Ω

THE ASSEMBLED

BLOCK

SUPPLIED WITH

TUNER

(FM/AM)

(SPZ50)

(SPZ70)

(SPZ50:AEP,UK,/SPZ70:AEP,UK)

11P(SPZ50:AEP,UK/SPZ70:AEP,UK)

REC-L

REC-R

9P(SPZ50:RU,SP,KR,AUS/SPZ70:RU,E2,E51,MX,AR)

(Page 25)

(Page 23)

(Page 29)

(Page 31)

(Page27)

(Page 29)

(Page 31)

(Page 37)

(Page 37)

Ver. 1.3

Note: Refer to SUPPLEMENT-1 for the MAIN board of HCD-SPZ70 Korean model.

Note: Refer to the Servicing Notes “NOTE OF REPLACING MAINBOARD, IC1301 (MAIN BOARD), C25 (POWER BOARD)OR POWER BOARD” (page 4), when you exchange theMAIN board.

HCD-SPZ50/SPZ70

2727HCD-SPZ50/SPZ70

7-12. SCHEMATIC DIAGRAM – MAIN Board (3/3) –

R1692

R1642

R1693

R1643

R1646

R1648

C1636

C1665

C1214

C1664

C1614

CN1309

CN1307

R1615

R1674

R1631

R1616

Q1607

R1621

R1619

C1628

C1612

C1615

C1616

C1613

C1629

R1620

R1603

CN1308

D1206

D1207

D1212

D1211

R1604R1625R1629 R1628R1632R1633

Q1611

R1627

R1626 C1635

R1623

Q1608

Q1609

R1630R1634

R1635

R1636R1637R1640R1641

R1639

R1638

Q1613

Q1610Q1612Q1614Q1616

Q1615Q1617

Q1606

R1622

C1603

1k

1k

10k

10k

1k

1k

0.001

0.001

47010V

10 50V

10 50V

23P

9P

2.2

0

470

2.2

KTA1273Y-AT

4.7k

2.2k

0.1

0.1

0.1

220 10V

220 10V

22010V

100

22k

13P

1N4002B

1N4002B

1N4002B

1N4002B

22k10k470 47k47047k

2SC3440

470

47k 22010V

470

2SC3052

2SA1235

47k47k

470

47k47047047k

470

47k

2SC3440

2SA13652SA13652SA13652SA1365

2SC34402SC3440

2SA1235

2.2k

0.1

C1

C2

C3

C4

B1

B2

B3

B4

B5

C5

C6

C7

100

41

42

39

40

38

A1

A2

M2-

M2

-

M2

+

M2+

M1+

M1+

M1-

M1-

28

34

24

33

25

26

23

35

7

50

49

48

47

37

5

46

45

44

43

36

19

B1

B2

M+7V

CD SCOR

CD SENS

CD XLAT

MP3 ACK

MP3 REQ

MP3 XLAT

MP3 DATA

CD CLK

MP3 IREQ

CD XRST

CD XTACN

A+3.3V

D+3.3V

MP3 CLK

CD DATA

AUDIO IN L

AUDIO IN GND

AUDIO IN R

AUDIO IN DET

DGND

HP GND

HP L

HP R

KEY3-2

M2-

M2+

M1-

M1+

SW-COM

SW7

SW6

SW5

SW8

NC

SW2

SW1

SW3

(3/3)

PROTECT

DETECT

Q1607-1609

REGULATOR

Q1610-1613

LOADING MOTOR DRIVE

Q1614-1617

CAM GEAR MOTOR DRIVE

THE ASSEMBLED

BLOCK

SUPPLIED WITH

CD MECHANISM

M-GND

R-CH

A-GND

L-CH

D-GND

D-MUTE

D-OUT

DECK BLOCK

(Page 25)

(Page 34)

(Page25)

(Page26)

(Page21)

Note: Refer to SUPPLEMENT-1 for the MAIN board of HCD-SPZ70 Korean model.

Note: Refer to the Servicing Notes “NOTE OF REPLACING MAINBOARD, IC1301 (MAIN BOARD), C25 (POWER BOARD)OR POWER BOARD” (page 4), when you exchange theMAIN board.

Ver. 1.3

HCD-SPZ50/SPZ70

2828HCD-SPZ50/SPZ70

R704

Q701C7

94

R793

R792

Q753

R719

R720

C712

C766

R713

R714

R711

R712

C788

C787

C779

C784

C726

R781

R782

R783

R789

C780

C799

C746

R749R748

C743R751

C734

C706

R733

R731

R747R746

R790 R741

R788

R787

R784

R745

IC703

C730

R765

C733

R730

R729

C767

C762

R769R770

R701

C742

C764

IC707

R752

R754

Q702Q703

R757

C756

C765

Q752

C778

R728

R727

IC701

IC705

R780

X702

IC709

C758

R778

R777R776

C804

R726

C715

R718

R771

C714

C725C713

C716C717

R707

R724

C760

R756

R759

L702

C722

R725

R774

C724

C723

C846

C845

R710

C745

C806

R785

C783

C761

L704

R708

C786

C832

C831

R706

R742

C785

R750

C797

IC704

L705

R740

L703

R722

C737

C739

R744

R743

C732

D701

D702

L701

C796

C749

R772

C744

R768

R739

C775

C763

C704

IC702

C718

C768

C736

C752

R773

C741 R786

C772

R775

R721

C774

C773

C847

R709

C844

C754

R755

CN702

CN70

3

CN705

C702

C720

C753

C710

C711

C728

L710

EP703

C798

C747

C740

C735

C709

C757

C748

L761

C731

C751

C701

C791

C708

C770

C719

C738

C781

C707

C777

C790

EP701

EP702

L711

L760

C769

CN700

CN704

E E

EE E

AMP BOARD (COMPONENT SIDE)

1-869-747-

11

(11)

1

11

10

20

1

14

7 8

1

12

13

36

25

24

48 37

31

18

1

19

36

4

5

(CHASSIS) (CHASSIS)

(CHASSIS)

AMP BOARD (CONDUCTOR SIDE)

1-869-747-

11

(11)

5 4

1

1

3

5

4

3

1

1

4

1

1

2

2

2

L1 SP BOARDCN870

K1 SP BOARDCN850

M1POWERBOARDCN31

E1MAIN

BOARDCN1203

H1MAIN

BOARDCN1302

A

B

C

D

E

F

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

7-13. PRINTED WIRING BOARD – AMP Board (SPZ50) – : Uses unleaded solder.

(Page 24)

(Page 33)

(Page 36)

(Page 24)

(Page 33)

• SemiconductorLocation

Ref. No. Location

D701 E-10D702 E-10

IC701 D-7IC702 D-9IC703 C-7IC704 B-9IC705 C-6IC707 C-5IC709 B-6

Q701 E-4Q702 E-2Q703 E-2Q752 B-2Q753 B-2

• See page 19 for Circuit Boards Location.

HCD-SPZ50/SPZ70

2929HCD-SPZ50/SPZ70

7-14. SCHEMATIC DIAGRAM – AMP Board (SPZ50) – • See page 38 for Waveforms. • See page 39 for IC Block Diagrams.

R792

R749

IC705R747

R773

R706

R708

R709

R711

R712 C713

C716

C706

CN702

CN703

C844

C845

C722

C723

R724

R725

C724

C725

R726 R728R727

C726

Q702

Q703

R739

R740

R721

R718

C846

C847

C772

C773

R774

R775

C774

C775

R772R771

R768

R776

R778

R777

C778

Q752

Q753C794R793

C769

C791

R765

C719

C702

R770

R719C712

C707R707C714

C764

R720

R769

C756

C768

C763

C766

C767

C709

C718

C765

C708

C715

R710C717

IC707

C762

C760

R755

R757

C758C790

R756

R713

R752

R754

CN704

CN705C711

R7

84

R7

85

R7

86

R7

87

R7

88

R7

89

C787

R790

C788

L704

R783

C785

R782

L705C783

C784

R781

X702

C780C779C799C781

C806

R744

R748

R741

C745

C746

R742

C747

C797

C761C798

C754

C752

C796

C704

C753

IC709

R780

C737

R722

C736

R745

R746

R733

IC703

C744

C757

C735C741C734L702

IC701

C733

C732

R729

R751

C749

R731

C831

C832

C740

C804

C731

L70110µH

C743 C742

C738

C748

R701

D701

D702

C701C751

CN700

R714

C739

R743

C720

C728

L710

L711

L760

L761

Q701

C777

C770

EP701

EP702

C710

C786

R750

IC704

IC702

EP703

L703

R759

C730

R730

0

0

CXD9788AR470

10k

100

12

12

100

100 0.047

560p

0.1

2P

2P

0.1

0.1

0.0022

0.0022

4.7

4.7

0.0022

0.0022

220k 220k100k

2.2

2SA1235

2SA1235

10k

10k

10k

10k

0.1

0.1

0.0022

0.0022

4.7

4.7

0.0022

0.0022

10k10k

10k

220k

220k

100k

2.2

2SA1235

2SA1235147k

180035V

0.1

0

1800 35V

0.1

3.3

3.30.1

4735V

12560p

0.1

3.3

3.3

0.1

0.047

0.047

0.1

0.1

4735V

0.047

0.1

47 35V

560p

12560p

CXD9845M

0.1

0.1

100

3.3

0.110016V

100

100

100

100

4P

2P22016V

10

0

10

0

10

0

10

0

10

0

10

0

0.001

100

0.1

22

10p

1M

10p

0.001

100

49.152MHz

0.0010.010.011050V

0.1

0

47k

100

0.01

0.01

10k

10010V

0.01

0.011050V

0.001

0.1

0.1

0.001

10010V

MC74VHC1GU04

22

0.0047

47k

0.01

100

100

470

MC74VHC74DTR2

0.1

1050V

1050V

0.10.001

PCM1803DBR

0.1

0.1

1k

100

0.1

470

0.1

0.01

22010V

0.001

10010V

0.01 0.01

10 50V10 50V

100

MMDL914T1

MMDL914T1

2.250V

2.250V

19P

100

0.01

100

1

1

2SC3052

1

1

47 35V

0.001

47k

NJM2871BF18

NJ